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  Catalytically active gold clusters and nanoparticles for CO oxidation

Pestryakov, A. N., Bogdanchikova, N., Simakov, A., Tuzovskaya, I., Jentoft, F. C., Farias, M., et al. (2007). Catalytically active gold clusters and nanoparticles for CO oxidation. Surface Science, 601(18), 3792-3795. doi:10.1016/j.susc.2007.04.012.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-012A-1 Version Permalink: https://hdl.handle.net/21.11116/0000-0006-6063-E
Genre: Journal Article

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Au_ECOSS_24_Paris_Pestryakov_Surf_Sci_2007edoc.pdf (Any fulltext), 287KB
 
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 Creators:
Pestryakov, Alexey N., Author
Bogdanchikova, Nina, Author
Simakov, Andrey, Author
Tuzovskaya, Inga, Author
Jentoft, Friederike C.1, Author           
Farias, Mario, Author
Díaz, Antonio, Author
Affiliations:
1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              

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Free keywords: gold catalysts, nanoparticles, zeolites, FTIR, UV-visible spectroscopy Catalysis by gold
 Abstract: Electronic states of gold nanoparticles in mordenite and their transformations under redox treatments have been studied by the methods of FTIR spectroscopy of adsorbed CO and diffuse reflectance UV-visible spectroscopy. Different states of ionic and metallic gold were detected in the zeolite channels and on the external surface of the zeolite – Au+ and Au3+ ions, charged clusters Aunδ+, and neutral nanoparticles Aum. Catalytic tests of the samples revealed the existence of two types of active sites of gold in CO oxidation – gold clusters < 2 nm (low-temperature activity) and gold nanoparticles (high-temperature activity

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Language(s): eng - English
 Dates: 2007-04-07
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 351683
DOI: 10.1016/j.susc.2007.04.012
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Title: Surface Science
  Alternative Title : Surf. Sci.
Source Genre: Journal
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Pages: - Volume / Issue: 601 (18) Sequence Number: - Start / End Page: 3792 - 3795 Identifier: -